I am willing to pay for it as long as you can guarantee me the package can arrive in time.

我愿意支付，只要你保证我的包裹可以准时寄到。

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Article 10. Railway transport enterprises shall guarantee the safety of passenger and freight transportation and see to it that trains arrive on time.

第十条铁路运输企业应当保证旅客和货物运输的安全，做到列车正点到达。

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